This is just because there will be a longer winter vacation in 2007 caused by the intercalary lunar july .
这是因为农历闰七月致使2007年的寒假来得长一点．
Chinese calendar : the traditional lunisolar calendar of the chinese people , based on 24 seasonal segments each about 15 days long . An intercalary month is occasionally necessary to reconcile the lunar year with the solar year .
I think we should do it at least twice in the space of each five-year plan , in the same way as the intercalary month in a lunar leap year turns up once in three years and twice in five .
